Here's my new Tenergy nimh battery. I decided to get a back up battery after my turnigy lipo decided to get bloated. This one wasn't cheap to me since I get charged tax and shipping because I'm in the same state. Now, the battery fits the 9x fine and I can also close the cover without any problem. The only thing is the plug which I'll have to use the old one from the lipo battery and I'll be adding a futaba female connector so that I can just use this battery on my surface transmitter as well. It fits so I'll just make two adapters so it's easy to move between the two. I have another lipo coming, but until I can figure out all of this so that I don't ruin any more batteries, this will have to do. You can find this one here: http://www.all-battery.com/96v2000mahsquarefutabant8s600btransmiterbatterypack11417.aspx
Other batteries you can use without spending too much.
I put all this velcro on here to test the lipo without the cover so I can plug in an external lipo buzzer or meter until I'm happy with my settings. By the way, the wires on this battery are pretty stiff in case anyone is wondering.
My puffed lipo from hobbyking and the Tenergy nimh. It came charged at 10.33V. Now I need to find out what I'm supposed to charge it at. The flightmax was fine until I changed the firmware on the transmitter and forgot to keep an eye on it.
Not pretty, but it fits and that's all I care about right now and that it works of course.
I have this old futaba battery that no longer holds a charge so I decided to take the red plug and put it on the new battery. I like the futaba plug because it has that lip that won't let you install this the wrong way. All you need to do is lift the plastic clips on the connectors and pull the cables.
See the black original doesn't have that...
I already have the Futaba cable to charge with so it works great. i'll just add a female end to one of the transmitter plugs so I can just unplug it and use it on either one. Then again, I didn't feel like soldering, so it worked out great. I'll have to solder the other wires though. :)
This is my new Kingmax 2200 11.1v battery from leadershobby. I got this yesterday May 31, 2011. This one is the one used for JR transmitters so you need to cut the old JR connector and solder the one needed for the 9x transmitter. This battery is a bit smaller which gives you more room on the top and side of the battery to tuck in the wires. Plus this one cost half of what the hobbyking's cost. So we'll see how it holds up, but since no one has put up any pictures, here you go. It's the last battery on the bottom of this page.
These are the connectors I use. I just cut them in half and solder whatever end I need. Just make sure to re-arrange the wires to match your transmitter though. The 9x only uses two wires, so take out the blue one fix the other two since they're backwards on the connector. I do like the lipo batteries because of how long they last, but you really have to be very careful with these if you don't want a fire in your hands.
I was hoping to just take out the wires from the old connectors and install them on the new one, but it turns out the JR connector is smaller, so you will need to do the soldering. A bit of a pain to do this for every battery, but it works if you don't mind. Just remember to do one at a time unless you like smoke coming out of your batteries. Then again lipos are not something you want to be smoking though. They usually create a fire if you do that long enough.
Here's my connector soldered on the battery. I'm getting better. Just make sure you triple check the polarity unless you want to fry your transmitter. Apparently it's very easy to do to this transmitter unfortunately. But a little care goes a long way.
As you can see this battery is quite a bit smaller than the flightmax which I do like myself even though it's only a 2200mAh battery.
And here's the voltage this one shows on here, but once I turned on the transmitter it shows 10.8 volts, so I'll connect a buzzer on it until I can figure out what I can use without damaging it like my first one. Even if this one cost less, killing batteries will add up really fast, not to mention the time it takes to get them.
Finally, here's a look at the fit in the 9x. Seems to work fine.
Here's my test setup until I can match the voltage from this buzzer to the transmitter voltage. Or at least figure out how far I can go on the battery without ruining it. Well, at least that's the plan. I'm using the velcro instead of the cover since the buzzer/votage meter is pretty thick, but if I take it out then the cover works just fine.
The other turnigy battery finally showed up. This one also needs the JR connector replaced to match the 9x transmitter. Here's the link to this battery...
So far the tenergy nimh and this one are still working without problems. I'm still using one of the 2200 from leaders but it really needed a charge, solder and now a balance to get it back to normal. I may just end up gong back to regular AA rechargeable nimh batteries eventually as they don't need much baby sitting and are more common and cheap now.
It's about the same size of the 2500, but mine got puffed, so the two on the left are my new replacements. Plus now I also have the tenergy nimh as my back up, just in case, but let's hope not.
Well, it looks like I had to solder connectors on all 3 batteries though. So far these 3 and the tenergy nimh battery are what I know fits the 9x. The good thing about the nimh is that I can leave that one in the transmitter without worrying about it, until it's low of course. Lipos just need more attention from what I'm learning. This is the link for the Flightmax 2500 if you want to pay that much.
Here's what this one looks like in the 9x. It fits just like the 2500.
Yes, they sure are a little bigger.
Here's the one for JR transmitters from leadershobby.
This one gives you a bit more room, but it's only a 2200mAh which is fine. I actually like the size of these batteries. Way much more room and lighter than the other blue ones.
The hobbyking batteries are right on the top edge, but the cover still closes fine with them.
Here's what the new battery says.
So today I was measuring the voltage and just happen to use the futaba connector. Unfortunately I found one of the wires wasn't soldered because I couldn't get any reading on this new battery. As you can see the I found the red wire was not soldered so I had to cut the new battery open to fix this.
Here's after soldering. The tape also has some kind of carboard which is pretty hard but I managed to get to the wires. It's not cool having to do this to your new battery but I need this plug to work and don't need a short so it had to be done.
A bit of electrical tape and I'm back in business. This is a transmitter battery so I don't have to worry about crashing it. Everything works just fine.
This is the second 2200 lipo I got from Leadershobby and this was like my second or third time recharging it but I kept getting a connection break! So I opened it up, found one break but I still kept getting this. I eventually found another break but since I don't have aluminum solder and lipo tabs are a pain to solder there's not much I can do. I really like the size of these, but unfortunately the few batteries I've gotten from leadershobby have not been great.
Here's the first break.
I managed to get this one back on. Unfortunately I still kept getting the break error.
So I kept peeling the battery.
A little solder dropped in here...
Here's the other break, there was no tab left to solder to so I didn't even bother, it was just too hard to tell what was what.
Today I received this battery. I decided to give it a try since the batteries I got from leadershobby have been pretty bad. The tx battery I got from them is not balancing well and the others are pretty much gone now. This is my third of this type and I like the size so I thought I try it since I wanted a 3rd or 4th TX battery. Unfortunately the plug is too small even thought the wires are in the correct order. So you need to solder a new connection if you don't want that falling off. I still had some of these battery extensions left that I purchased for this purpose so I just cut one and moved the wires around. You can see how they come in the uncut extension. The black and red are in the wrong place too so you need to change them around and take out the blue which is not used on here.
Here's the connector finished next to my old one. I got different batteries just because I want to see which perform better and won't just die on me. Kingmax is still working, but I won't be buying that again. Don't get me wrong, I like leadershobby, but I just haven't had any luck with their batteries. They do work but they just don't balance well. I'm still using this one and another for a car TX.